/* Copyright 2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package geb.report

class PngUtils {

    static boolean isPng(byte[] bytes) {
        try {
            new DataInputStream(new ByteArrayInputStream(bytes)).readLong() == 0x89504e470d0a1a0aL
        } catch (IOException e) {
            // not going to happen
            false
        }
    }

}